|  | // Copyright 2019 The Go Authors. All rights reserved. | 
|  | // Use of this source code is governed by a BSD-style | 
|  | // license that can be found in the LICENSE file. | 
|  |  | 
|  | package gc | 
|  |  | 
|  | import ( | 
|  | "internal/testenv" | 
|  | "os/exec" | 
|  | "strings" | 
|  | "testing" | 
|  | ) | 
|  |  | 
|  | func TestDeps(t *testing.T) { | 
|  | out, err := exec.Command(testenv.GoToolPath(t), "list", "-f", "{{.Deps}}", "cmd/compile/internal/gc").Output() | 
|  | if err != nil { | 
|  | t.Fatal(err) | 
|  | } | 
|  | for _, dep := range strings.Fields(strings.Trim(string(out), "[]")) { | 
|  | switch dep { | 
|  | case "go/build", "go/token": | 
|  | t.Errorf("undesired dependency on %q", dep) | 
|  | } | 
|  | } | 
|  | } |